CN103578740A - Method for producing chip coil - Google Patents
Method for producing chip coil Download PDFInfo
- Publication number
- CN103578740A CN103578740A CN201310316407.0A CN201310316407A CN103578740A CN 103578740 A CN103578740 A CN 103578740A CN 201310316407 A CN201310316407 A CN 201310316407A CN 103578740 A CN103578740 A CN 103578740A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 230000008093 supporting effect Effects 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 28
- 238000003825 pressing Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 229910000679 solder Inorganic materials 0.000 description 20
- 238000004804 winding Methods 0.000 description 10
- 238000005452 bending Methods 0.000 description 9
- 238000009413 insulation Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 238000005755 formation reaction Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 229920003055 poly(ester-imide) Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/041—Printed circuit coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0013—Printed inductances with stacked layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
- H01F2027/2809—Printed windings on stacked layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
- H01F2027/2814—Printed windings with only part of the coil or of the winding in the printed circuit board, e.g. the remaining coil or winding sections can be made of wires or sheets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The invention provides a method for producing a chip coil. Two ends of a coiling part (11c) possessing the coiling part(11c) of the core (11) of flanges (11a, 11b) are winded with a coiling wire rod (13); the two ends of the coiling wire rod (13) winded on the coiling part(11c) are connected with the electrode (12) formed on the flange (11a), wherein when the coiling part(11c) is winded with the coiling wire rod (13), the ends of the coiling wire rod (13) winded on the coiling part(11c) are flattened to form a flattening part (14) to connect with the electrode (12) face to face.
Description
Technical field
The present invention relates to the chip coil (Japanese: manufacture method チ ッ プ コ イ Le) of wound skein product in a kind of reel portion of the core body that is formed with flange part at both ends.
Background technology
In the past, as the chip coil that is used in miniaturized electronics etc., be known to a kind of such chip coil: by there is wound skein product in the reel portion of core body of flange part at both ends, obtain coil, the wire rod of this overhang is fixed on the electrode that is formed at flange part.At this; for the end of wire rod being fixed on the electrode that is formed at flange part; use heater by being pressed on flange part, is peeled off the insulating protective film of wire rod by the end of wire rod, and by the soft solder melting of electrode is made to wire rod and electrode engagement.
On the other hand, in recent years since, the miniaturization of electronic equipment develops, along with its miniaturization, the miniaturization of chip coil, the requirement of high performance are also strengthening gradually.In order to meet such requirement, have the situation of using the wire rod that diameter is larger for the size of core body.Like this; for in the situation that use the wire rod that diameter is larger to manufacture chip coil; use heater to peel off the insulating protective film of wire rod, and wire rod be crimped on electrode the soft solder melting of electrode, must utilize larger power by wire rod by being pressed on flange part.Therefore, sometimes cause flange part, electrode damage.
In order to eliminate such problem, the applicant's motion a kind of manufacture method of chip coil, the manufacture method of this chip coil comprises: by making to flatten wire rod, empty two flat portions that opened predetermined space form the operation of the predetermined length that can engage with the flange part of core body respectively; With a flat portion, be disposed at utilize wire rod retaining member to keep first around leading part (Japanese:, and another flat portion is disposed at the whole operation winding the line around the mode of leading part (Japanese: Juan Final り リ ー De portion) volume beginning め リ ー De portion); In order to make just around leading part and to make respectively just around leading part with being formed at the electrode contraposition of flange part and engage with flange part around the flat portion of leading part eventually around the flat portion of leading part eventually, and the operation bending along flange part; And by flat portion is separately heated by being pressed in the operation (for example, with reference to JP4875991B) that on electrode, flat portion and electrode engagement is got up.
In the manufacture method of this chip coil, coiling after wire flattening is flat, makes itself and electrode engagement owing to pressing flat portion by heating after coiling, thus needn't use larger power by wire rod by being pressed on flange part.Thus, the possibility of damaging flange part, electrode can be reduced, the stable chip coil of engagement state of wire rod and electrode can be obtained.
But, in the manufacture method of the disclosed chip coil of JP4875991B, owing to forming empty two flat portions that opened predetermined space before coiling, after coiling, make these two flat portions that are crushed respectively with electrode engagement, therefore the wire rod between two flat portions is directly wound the line in reel portion.Thus, the length of the wire rod between two flat portions time becomes important element in coiling, but the situation that the tension force that the wire rod being wound the line is applied in while also existing because of coiling extends.In addition, wire rod through by multilayer wind the line in the situation that, also there is the different situation of difference of the position that the length of the wire rod of coiling changes because of layer.Thereby, in the manufacture method of the disclosed chip coil of JP4875991B, can produce the satisfied such situation of length winding the line of wire rod that two wire rods between flat portion are not all wound the line between such situation, two flat portions.Under these circumstances, produce such situation: two flat portion self-electrodes that are crushed after coiling depart from, and cannot make flat portion and electrode normal engagement.
In addition, before coiling, form empty having opened in the manufacture methods two flat portions, above-mentioned chip coil in the past of predetermined space, when the external diameter of the wire rod being wound the line, during the number of times of coiling etc. coilings specifications vary, need according to this variation, to obtain the length of the wire rod being wound the line at every turn, increase the operation that will carry out before coiling, thereby be difficult to carry out specification change fast.
Summary of the invention
the problem that invention will solve
The object of the present invention is to provide a kind of easy change coiling specification and can make the manufacture method of the chip coil that the end of wire rod engages reliably with electrode.
for the scheme of dealing with problems
According to a technical scheme of the present invention, a kind of manufacture method of chip coil is provided, in this manufacture method, at the both ends of reel portion, there is wound skein product in the above-mentioned reel portion of core body of flange part, the both ends that are wound in the above-mentioned wire rod of above-mentioned reel portion are coupled together with the electrode that is formed at above-mentioned flange part, wherein, in above-mentioned reel portion, reeled after above-mentioned wire rod, the end that is wound in the above-mentioned wire rod of above-mentioned reel portion by flattening forms flattening portion, makes above-mentioned flattening portion and the face-off of above-mentioned electrode and couples together.
Accompanying drawing explanation
Fig. 1 is the stereogram of core body of manufacture method that is used in the chip coil of embodiments of the present invention.
Fig. 2 is the cutaway view of core body of manufacture method that is used in the chip coil of embodiments of the present invention.
Fig. 3 is the cutaway view of core body of manufacture method that is used in the chip coil of embodiments of the present invention.
Fig. 4 means the stereogram of the state that utilizes fixture supports core body.
Fig. 5 means the stereogram that is wound with the state of wire rod on the core body of fixture being supported on.
Fig. 6 is the end view that coiling has the core body of wire rod.
Fig. 7 means the enlarged side view of the state of the end that utilizes the wire rod that supporting members supports wound the line.
Fig. 8 means and pressing member is pressed against to the end of the wire rod that utilizes supporting members supports and by the end view of the state after wire flattening.
Fig. 9 means the end view that makes the state after pressing member and supporting member separate.
Figure 10 means and makes supporting member towards the central mobile of flange part, wire rod is drawn out to the end view of the state of flange part rear flank.
Figure 11 means the end view that makes the state after flattening portion and electrode face-off at flange part bending wire rod.
Figure 12 means the end view that the flattening portion with electrode face-off is pressed against to the state on electrode.
Figure 13 is the C-C cutaway view of Figure 12.
Figure 14 means that flattening portion utilizes soft solder to be engaged in the cutaway view of the state of electrode.
Figure 15 means the stereogram of the chip coil that the manufacture method of the chip coil that utilizes embodiments of the present invention obtains.
Embodiment
Below, with reference to the accompanying drawings of embodiments of the present invention.
As shown in figure 15, the manufacture method of the chip coil of present embodiment is for the core body 11(that has flange part 11a, 11b at the both ends of the 11c of reel portion is with reference to Fig. 1) the upper wound skein product 13 of the 11c of reel portion, by make to be wound in the 11c of reel portion wire rod 13 both ends be formed at flange part 11a electrode 12 face-offs couple together, obtain chip coil 40.
As shown in Figure 1, core body 11 is on the both ends of the 11c of reel portion, to be formed with the core body of flange part 11a, 11b.On flange part 11a, 11b, be formed with electrode 12.In the present embodiment, the situation of using following core body 11 has been described: on a flange part 11a, be formed with pair of electrodes 12,12, on another flange part 11b, be not formed with electrode 12.
As shown in Figure 1 to Figure 3, core body 11 consists of insulating properties materials such as dielectric, magnetic, ceramic insulator, plastics.On the outside of a flange part 11a, be formed with a pair of groove 11d parallel to each other.On groove 11d separately, be formed with electrode 12.Electrode 12 is for utilizing soft solder 16(with reference to Figure 14) engage the part of the end of wire rod 13, be configured to and utilize soft solder 16 can engage wire rod 13.
In the present embodiment, as shown in Figure 2, the structure exemplified with electrode 12 for basalis 12a, Ni coating 12b and Sn coating 12c are laminated.Basalis 12a for example by coating, contains Ag conductive paste and sintering forms.In addition, basalis 12a can also utilize the additive methods such as evaporation, plating, sputter to form.
In order to prevent that soft solder is etched, on basalis 12a, be formed with Ni coating 12b as the anti-erosion layer of soft solder.In addition, replace Ni, can also use Cu, Fe etc.Braze ability while installing in order to improve is formed with Sn coating 12c as easy solder layer on the outer surface of Ni coating 12b.In addition, replace Sn, can also utilize the material of superior other of the braze abilities such as soft solder to form coating 12c, thereby form easy solder layer.
The wire rod 13 that is wound in the 11c of reel portion is drawn and is folded to outer surface (with reference to Figure 12) from the periphery of the flange part 11a of a side from the 11c of reel portion.Then, this end enters groove 11d, is configured to and electrode 12 face-offs that are formed at groove 11d.Be formed with on the flange part 11a of electrode 12, the tapering 11e that can hold wire rod 13 forms from periphery and groove 11d continuous.That is, tapering 11e be configured to can hold from the 11c of reel portion draw and from the periphery of flange part 11a turning over the wire rod 13 of outer surface, from periphery towards groove 11d the wire rod 13 that turned down.
Utilizing soft solder 16(with reference to Figure 14) wire rod 13 that is engaged in electrode 12 is insulation sheath wire, comprises the wire that consists of Cu and for covering the insulation sheath of the outer peripheral face of wire.Insulation sheath utilizes the formations such as polyesterimide, and because the temperature of the insulation sheath melting that makes to be comprised of polyesterimide is more than 330 ℃, therefore, thereby heat fusing when insulation sheath utilizes soft solder 16 to engage makes wire solder in electrode 12.
The characteristic point of the manufacture method of the chip coil of present embodiment is, on the 11c of reel portion, has reeled after wire rod 13, and the end that is wound in the wire rod 13 of the 11c of reel portion by flattening forms flattening portion 14.The known common method for winding having carried out since the winding process utilization in the past of wound skein product 13 on the 11c of reel portion carries out (for example, with reference to JP2012-80037A).
Particularly, as shown in Figure 4, illustration has also illustrated fixture 21 maintenance core bodys 11, the situation of carrying wire rod 13 and winding the line from jet pipe (not shown) utilized.In this method for winding, utilize fixture 21 to keep another flange part 11b, using the end of the wire rod of carrying from jet pipe 13 as first around wire rod 13a and make it be supported on supporting member (not shown).Then, wire rod 13 is introduced to the 11c of reel portion from being formed at the tapering 11e of the end of groove 11d, this groove 11d be formed with for engage just around the electrode 12 of wire rod 13a.Then, make supporting member and fixture 21 synchronously to same direction rotation, the wire rod of carrying 13 is wound on the 11c of reel portion of the core body 11 of rotation together with fixture 21 from jet pipe.
Now, preferably make jet pipe come and go in the width range of the 11c of reel portion mobile.That is, while turning around by often revolving at fixture 21 and core body 11, make the only mobile amount equating with the wire diameter of wire rod 13 of jet pipe, can be by the wire rod of carrying from jet pipe 13 to reel alignedly with the closely sealed state of the 11c of reel portion.Thus, can become the alignment winding of so-called wire rod 13.Then, as shown in Figure 5, in the stage at the wire rod 13 of the predetermined quantity of having reeled, can obtain the coil 30 being formed by the wire rod 13 of reeling.
The characteristic point of the manufacture method of the chip coil of present embodiment is, on the 11c of reel portion, has reeled after wire rod 13, and the end that is wound in the wire rod 13 of the 11c of reel portion by flattening forms the 14(of flattening portion with reference to Fig. 9).As shown in Figure 6, preferably, the formation of flattening portion 14 is to be wound in the 11c of reel portion and end 13a, the 13b of the wire rod radially extending to be carried out as shown in solid arrow in figure after the axial bending of the 11c of reel portion as shown in the single-point dotted line in figure from the 11c of reel portion.That is, as shown in Figure 5, by just around wire rod 13a from the 11c of reel portion winding the line along the 11c of reel portion with extending axially.Then, preferably, on the 11c of reel portion, reeled after wire rod 13, by eventually around wire rod 13b idiomorphism be formed in tapering 11e(Fig. 3 of the end of groove 11d) draw and along the extending axially of the 11c of reel portion, this groove 11d be formed with for engage eventually around the electrode 12 of wire rod 13b.
Eventually around wire rod 13b be by the wire rod that is wound in the 11c of reel portion and draws from jet pipe 13 is cut off and formed.At the wire rod 13 that is wound in the 11c of reel portion, have in flexible situation, when cutting off wire rod 13, form eventually around wire rod 13b part time, utilize the elasticity of wire rod 13 make eventually around wire rod 13b part to moving with the direction that is wound in the opposite direction of the 11c of reel portion.Due to eventually around the movement of wire rod 13b part likely to make to be wound in the wire rod 13 of the 11c of reel portion loosening.But, by utilize a side flange part 11a bending wire rod 13 both ends 13a, 13b and make the both ends 13a, 13b engaging of wire rod 13 in flange part 11a, can prevent that end 13a, 13b from departing from from the flange part 11a of a side.So, can avoid becoming flexible because end 13a, 13b depart from coil 30 that cause, that form in the wire rod 13 of the 11c of reel portion by winding the line from the flange part 11a of a side.
Particularly, as shown in Figure 7, continuous from periphery and the groove 11d of the flange part 11a of a side owing to forming tapering 11e, if therefore from the 11c of reel portion via the periphery of flange part 11a make wire rod 13 enter tapering 11e, the end 13a of wire rod 13,13b engaging are in tapering 11e.Thus, can effectively avoid end 13a, the 13b of wire rod depart from and make coil 30 become flexible such situation from the flange part 11a of a side.
In the present embodiment, by the both ends of the wire rod 13 of the flange part 11a extension from a side are formed to flattening portion 14 near the flattening of flange part 11a.When forming flattening portion 14, so long as by flattening end 13a, the 13b of the rounded wire rod in cross section and cross sectional shape can being made to oblong shape or elliptical shape, just can adopt variety of way.In the present embodiment, the situation of utilizing supporting member 25 and pressing member 26 to clamp simultaneously and flatten both ends 13a, the 13b of wire rod and forming flattening portion 14 has simultaneously been described.
As shown in Figure 7, when forming flattening portion 14, both ends 13a, the 13b of the wire rod that supporting member 25 extends from the flange part 11a of a side from the radial outside supporting of flange part 11a.Like this, by from supporting both ends, outside 13a, 13b, can prevent that end 13a, the 13b of the wire rod of drawing from turning back to the 11c of reel portion side and causing the loosening such situation of coil 30.
Then, as shown in Figure 8, the end 13a, the 13b that pressing member 26 are pressed against to the wire rod that utilizes supporting member 25 supportings are upper, utilize pressing member 26 and supporting member 25 to clamp and flatten end 13a, the 13b of wire rod.Thus, form flattening portion 14.Now, by utilizing pressing member 26 and supporting member 25 from end 13a, the 13b of near the wire gripper of flange part 11a, and form flattening portion 14 near the wire rod 13 flange part 11a.As shown in figure 14, the degree of flattening is preferably, and the width w of the flattening portion 14 of formation, in the scope of width D that is less than the groove 11d that is formed with electrode 12, makes the thickness d of flattening portion 14 be thinner than the depth H of groove 11d.If form in this wise flattening portion 14, can hold flattening portion 14 at groove 11d, can prevent the amplification of the chip coil 40 that obtains thickness in the axial direction.
Return to Fig. 8, while forming flattening portion 14 near the wire rod 13 flange part 11a, as shown in solid arrow, be also sometimes formed with near the wire rod 13 flange part 11a of flattening portion 14 and to the 11c of reel portion side, extend because of end 13a, the 13b of wire rod its part that is crushed.But, after forming flattening portion 14, as shown in Figure 9, pressing member 26 and supporting member 25 are separated, thereby remove the clamping that utilizes pressing member 26 and 25 pairs of wire rods 13 of supporting member.Then, as shown in figure 10, supporting member 25 is moved a little towards the central authorities of flange part 11a.Thus, as shown in solid arrow, can by the surrounding at flange part 11a and with flattening portion 14 continuously and lax a little wire rod 13 to electrode 12 sides, draw and introduce tapering 11e, thereby can remove loosening because of the wire rod 13 loosening coils 30 that cause.Thus, even its part is extended because end 13a, the 13b of wire rod 13 is crushed to the 11c of reel portion side, and there is the lax a little situation of wire rod 13 of the surrounding of flange part 11a, also can remove that this is loosening.
Then, as shown in figure 11, by the periphery bending wire rod 13 at a flange part 11a, make the axially extended flattening portion 14 along core body 11 and electrode 12 face-offs from flange part 11a.This bending also can utilize above-mentioned supporting member 25 to carry out, but can also utilize other device to carry out.In order to utilize other device bending wire rod 13, when core body 11 is moved together with coil 30, coil 30 is likely loosening.But, by introducing tapering 11e and make wire rod 13 engagings continuous with flattening portion 14 in flange part 11a with flattening portion 14 continuous wire rod 13, can prevent wire rod 13 from the surrounding of flange part 11a to the 11c of reel portion side shifting.Thus, do not have the loosening situation of coil 30.
The situation of utilizing 25 pairs of flattening portions 14 of supporting member to bend is described.As shown in figure 11, to be supporting members 25 by making to contact with flattening portion 14 be moved further and carry out towards the central authorities of flange part 11a in the bending of flattening portion 14.Like this, if be used to form the supporting member 25 of flattening portion 14, can proceed to till the bending of wire rod 13, maximization that just can anti-locking apparatus, therefore preferably.But, when when making supporting member 25 towards the central mobile of flange part 11a near flange part 11a, can bend flattening portion 14, but be not limited to flattening portion 14, contact with electrode 12.Therefore, as shown in figure 12, the supporting member 25 that makes to have bent wire rod 13 in flange part 11a moves axially along core body 11, and flattening portion 14 is temporarily contacted with the electrode 12 that is formed at flange part 11a.Thus, even if make afterwards this supporting member 25 separately, this flattening portion 14 also can be maintained the state with electrode 12 face-offs.
At this, in the present embodiment, as shown in figure 13, on the supporting member 25 for flattening portion 14 is contacted with electrode 12, be formed with the inside and a pair of raised line 25a, the 25b for flattening portion 14 is contacted with electrode 12 that enter into groove 11d.By utilizing such raised line 25a, 25b to enter into the inside of groove 11d, flattening portion 14 is contacted with electrode 12.Thus, as shown in figure 12, the wire rod 13 continuous with flattening portion 14 is housed inside tapering 11e.Thus, can avoid wire rod 13 from the part that is formed with electrode 12 of flange part 11a the axial outstanding situation along core body 11.
Then, make to be connected with electrode 12 with the flattening portion 14 of electrode 12 face-offs.The known usual method of having carried out since being connected of flattening portion 14 and electrode 12 being to utilize is in the past carried out.For example, utilize and used the solder of solder flux to carry out (JP2009-142835A).When carrying out solder, in the present embodiment, due to the wire rod as insulation sheath wire 13 is flattened, therefore by this flattening, caused part or all breakage of the insulation sheath of wire rod 13.Therefore, by utilizing flattening portion 14 solders of flattening formation in the temperature of electrode, compare with the temperature that the unbroken wire rod 13 of insulation sheath is carried out to solder, can solder temperature be suppressed lowlyer.And, by flattening portion 14 is connected with electrode 12, can obtains comprise by core body 11 and the chip coil 40(that is wound in the coil 30 that the wire rod 13 of core body 11 forms with reference to Figure 15).
As shown in figure 14, by utilizing soft solder 16 to enter into the inside of groove 11d and to be connected with electrode 12 with the flattening portion 14 of electrode 12 face-offs, the flattening portion 14 of the end of wire rod 13 can be linked to be contained in state and the electrode 12 of groove 11d.Therefore, even if wire rod 13 is larger footpath, also can avoid wire rod 13 from the part that is formed with electrode 12 of flange part 11a the axial outstanding situation along core body 11.Thereby, can prevent that the chip coil 40(obtaining is with reference to Figure 15) amplification of thickness in the axial direction.
According to above execution mode, can play action effect shown below.
Coiling flatten afterwards just around wire rod 13a and eventually around wire rod 13b, the flattening portion 14 forming is thus engaged with electrode 12 respectively.Therefore, even due to the elongation of wire rod 13, wire rod 13 through multilayers the position of variation of layer in situation about winding the line make directly to wind the line different in the length of the wire rod 13 of the 11c of reel portion, two flattening portions 14 that also can make to be formed at the both ends of the wire rod 13 of coiling on the 11c of reel portion engage reliably with electrode 12.
In addition, because the end at the rear flattening wire rod 13 of wire rod 13 of having reeled forms flattening portion 14, even if the therefore coiling specifications vary such as the number of times of coiling also needn't be obtained the length of the wire rod 13 of each coiling.Therefore, can change rapidly specification.Its result, easily changes coiling specification, and can make flattening portion 14 engage reliably with electrode 12.
In addition, because the flattening portion 14 that flattening wire rod 13 is formed engages with electrode 12, wire rod 13 and the bonding area of electrode 12 are increased, therefore can also make wire rod 13 and the engagement state of electrode 12 stablize in mechanicalness and electrical resistance.
In addition, in the above-described embodiment, such situation has been described: make the wire rod 13 continuous with flattening portion 14 be contained in tapering 11e, thus, avoid wire rod 13 from the part that is formed with electrode 12 of flange part 11a the axial outstanding situation along core body 11.But, if do not exist the wire rod 13 continuous with flattening portion 14 from the part that is formed with electrode 12 of flange part 11a the axial outstanding risk along core body 11, can not form tapering 11e.
In addition, in the above-described embodiment, illustrated side by side clamp and flatten the wire rod 13 that is wound in the 11c of reel portion both ends 13a, 13b, form the situation of flattening portion 14 simultaneously.But, if the formation of flattening portion 14 has been reeled on the 11c of reel portion after wire rod 13, also can flatten respectively just around wire rod 13a and eventually around wire rod 13b, thereby form respectively flattening portion 14.
Above, embodiments of the present invention have been described, but above-mentioned execution mode only shows a part for application examples of the present invention, its aim does not also lie in the concrete structure that protection scope of the present invention is defined in to above-mentioned execution mode.
Claims (4)
1. the manufacture method of a chip coil, in this manufacture method, the upper wound skein product (13) of above-mentioned reel portion (11c) at the both ends of reel portion (11c) with the core body (11) of flange part (11a, 11b), the both ends that are wound on the above-mentioned wire rod (13) in above-mentioned reel portion (11c) are coupled together with the electrode (12) that is formed at above-mentioned flange part (11a), wherein
In above-mentioned reel portion (11c), reeled after above-mentioned wire rod (13), by flattening portion (14) is flattened to form in the end that is wound in the above-mentioned wire rod (13) of above-mentioned reel portion (11c),
Above-mentioned flattening portion (14) and above-mentioned electrode (12) are stood facing each other to be coupled together.
2. the manufacture method of chip coil according to claim 1, wherein,
Utilize supporting member (25) from the radial outside of above-mentioned flange part (11a), to support the end of the wire rod (13) extending from flange part (11a),
Pressing member (26) is pressed against to the end that utilizes above-mentioned supporting member (25) supporting of above-mentioned wire rod (13), by the end that utilizes above-mentioned pressing member (26) and above-mentioned supporting member (25) to clamp and flatten above-mentioned wire rod (13), form flattening portion (14)
After above-mentioned pressing member (26) and above-mentioned supporting member (25) are separated, make above-mentioned supporting member (25) towards the central mobile of above-mentioned flange part (11a).
3. the manufacture method of chip coil according to claim 2, wherein,
By the wire rod (13) that will contact with above-mentioned flange part (11a), at above-mentioned flange part (11a), above bend, make to be formed at the above-mentioned flattening portion (14) of end and the face-off of the above-mentioned electrode (12) of above-mentioned flange part (11a) of above-mentioned wire rod (13).
4. the manufacture method of chip coil according to claim 3, wherein,
In above-mentioned flange part (11a), formation can be held the tapering (11e) of the wire rod (13) continuous with above-mentioned flattening portion (14).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012164279A JP6004568B2 (en) | 2012-07-25 | 2012-07-25 | Chip coil manufacturing method |
| JP2012-164279 | 2012-07-25 |
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| CN103578740A true CN103578740A (en) | 2014-02-12 |
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| JP (1) | JP6004568B2 (en) |
| KR (1) | KR101478916B1 (en) |
| CN (1) | CN103578740B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631045A (en) * | 2017-03-23 | 2018-10-09 | 三星电机株式会社 | Piece type antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845318B (en) * | 2015-01-30 | 2019-09-13 | 株式会社村田制作所 | Surface mount inductor and its manufacturing method |
| JP7193968B2 (en) * | 2018-09-28 | 2022-12-21 | 太陽誘電株式会社 | Coil parts and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007158028A (en) * | 2005-12-05 | 2007-06-21 | Murata Mfg Co Ltd | Winding electronic component and its manufacturing method |
| JP2010109211A (en) * | 2008-10-31 | 2010-05-13 | Murata Mfg Co Ltd | Electronic component and method of manufacturing the same |
| JP2011138911A (en) * | 2009-12-28 | 2011-07-14 | Koa Corp | Wound coil component, and method of manufacturing the same |
| JP2012015487A (en) * | 2010-05-31 | 2012-01-19 | Maruwa Co Ltd | Inductor and manufacturing method of the same |
| CN102446625A (en) * | 2010-10-06 | 2012-05-09 | 日特机械工程株式会社 | Coil winding device and coil winding method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0624970Y2 (en) * | 1990-12-15 | 1994-06-29 | 太陽誘電株式会社 | Drum core for winding parts |
| JP3443509B2 (en) * | 1996-12-06 | 2003-09-02 | 太陽誘電株式会社 | Wound electronic component and method of manufacturing the same |
| TW373197B (en) * | 1997-05-14 | 1999-11-01 | Murata Manufacturing Co | Electronic device having electric wires and the manufacturing method thereof |
| JP3960090B2 (en) * | 2002-03-19 | 2007-08-15 | Ｔｄｋ株式会社 | Manufacturing method of coil-embedded dust core |
| KR20040070664A (en) * | 2003-02-04 | 2004-08-11 | 주식회사 다코웰 | Coil tapping machine |
| JP4655769B2 (en) * | 2005-06-10 | 2011-03-23 | 株式会社村田製作所 | Method for manufacturing wire wound electronic component |
| JP4875991B2 (en) * | 2006-02-28 | 2012-02-15 | 日特エンジニアリング株式会社 | Chip coil manufacturing apparatus and manufacturing method |
| JP4741415B2 (en) * | 2006-05-18 | 2011-08-03 | 日特エンジニアリング株式会社 | Coil winding apparatus and coil winding method |
| JP5084459B2 (en) * | 2007-11-15 | 2012-11-28 | 太陽誘電株式会社 | Inductor and manufacturing method thereof |
-
2012
- 2012-07-25 JP JP2012164279A patent/JP6004568B2/en active Active
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2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007158028A (en) * | 2005-12-05 | 2007-06-21 | Murata Mfg Co Ltd | Winding electronic component and its manufacturing method |
| JP2010109211A (en) * | 2008-10-31 | 2010-05-13 | Murata Mfg Co Ltd | Electronic component and method of manufacturing the same |
| JP2011138911A (en) * | 2009-12-28 | 2011-07-14 | Koa Corp | Wound coil component, and method of manufacturing the same |
| JP2012015487A (en) * | 2010-05-31 | 2012-01-19 | Maruwa Co Ltd | Inductor and manufacturing method of the same |
| CN102446625A (en) * | 2010-10-06 | 2012-05-09 | 日特机械工程株式会社 | Coil winding device and coil winding method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631045A (en) * | 2017-03-23 | 2018-10-09 | 三星电机株式会社 | Piece type antenna |
| CN108631045B (en) * | 2017-03-23 | 2020-10-20 | 株式会社Wits | Chip antenna |
| US10998613B2 (en) | 2017-03-23 | 2021-05-04 | Wits Co., Ltd. | Chip antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140013968A (en) | 2014-02-05 |
| JP6004568B2 (en) | 2016-10-12 |
| CN103578740B (en) | 2017-04-12 |
| TW201405601A (en) | 2014-02-01 |
| JP2014027029A (en) | 2014-02-06 |
| KR101478916B1 (en) | 2014-12-31 |
| TWI462131B (en) | 2014-11-21 |
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